The following documents are available to download in .pdf format.

•• Laser diode principles (45k)
•• Visible laser light & eye color sensitivity (55k)
•• Optical correction methods for laser diode modules (69k)
•• Infrared viewer frequently asked questions (52k)
•• How a HeNe gas laser works (60k)
•• HeNe gas lasers vs. laser diode modules (55k)
•• Selecting and handling a ballast resistor (53k)